package com.hczt.fire.server.common.interceptor;

import com.hczt.fire.entity.sys.SysUser;
import com.hczt.fire.server.common.util.SessionUtil;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * 把今天最好的表现当作明天最新的起点．．～
 * いま 最高の表現 として 明日最新の始発．．～
 * Today the best performance  as tomorrow newest starter!
 *
 * @author marvin.ma
 * @create 2017-11-01 6:53
 * @desc 后台--校验用户登陆
 **/
public class AdminInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //        System.out.println(">>>MyInterceptor>>>>>>>在请求处理之前进行调用（Controller方法调用之前）");
        //        System.out.println(request.getSession().getMaxInactiveInterval());
        SysUser user = (SysUser) request.getSession().getAttribute(SessionUtil.SESSION_ADMIN_USER);
        if(null == user){
            response.sendRedirect(request.getContextPath() + "/admin/login");
            return false;
        }
        return true; // 只有返回true才会继续向下执行，返回false取消当前请求

    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
        //        System.out.println(">>>MyInterceptor>>>>>>>请求处理之后进行调用，但是在视图被渲染之前（Controller方法调用之后）");

    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        //        System.out.println(">>>MyInterceptor>>>>>>>在整个请求结束之后被调用，也就是在DispatcherServlet 渲染了对应的视图之后执行（主要是用于进行资源清理工作）");

    }
}
